Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves
Shock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range. If the shock velocity is lower than this range, dust particles smaller than chondrule precursors melt, while chondrule precursors do not...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acc57c |
| _version_ | 1797696509256400896 |
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| author | Yuji Matsumoto Sota Arakawa |
| author_facet | Yuji Matsumoto Sota Arakawa |
| author_sort | Yuji Matsumoto |
| collection | DOAJ |
| description | Shock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range. If the shock velocity is lower than this range, dust particles smaller than chondrule precursors melt, while chondrule precursors do not. We focus on the low-velocity shock waves as the igneous rim accretion events. Using a semianalytical treatment of the shock-wave heating model, we found that the accretion of molten dust particles occurs when they are supercooling. The accreted igneous rims have two layers, which are the layers of the accreted supercooled droplets and crystallized dust particles. We suggest that chondrules experience multiple rim-forming shock events. |
| first_indexed | 2024-03-12T03:27:25Z |
| format | Article |
| id | doaj.art-dfd01f4844cd4c28b08ad213b2c9b9f4 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:27:25Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-dfd01f4844cd4c28b08ad213b2c9b9f42023-09-03T13:33:46ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194827310.3847/1538-4357/acc57cIgneous Rim Accretion on Chondrules in Low-velocity Shock WavesYuji Matsumoto0https://orcid.org/0000-0002-2383-1216Sota Arakawa1https://orcid.org/0000-0003-0947-9962National Astronomical Observatory of Japan , 2-21-1, Osawa, Mitaka, 181-8588 Tokyo, Japan ; yuji.matsumoto@nao.ac.jpJapan Agency for Marine-Earth Science and Technology , 3173-25, Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, JapanShock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range. If the shock velocity is lower than this range, dust particles smaller than chondrule precursors melt, while chondrule precursors do not. We focus on the low-velocity shock waves as the igneous rim accretion events. Using a semianalytical treatment of the shock-wave heating model, we found that the accretion of molten dust particles occurs when they are supercooling. The accreted igneous rims have two layers, which are the layers of the accreted supercooled droplets and crystallized dust particles. We suggest that chondrules experience multiple rim-forming shock events.https://doi.org/10.3847/1538-4357/acc57cChondritesChondrules |
| spellingShingle | Yuji Matsumoto Sota Arakawa Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves The Astrophysical Journal Chondrites Chondrules |
| title | Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves |
| title_full | Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves |
| title_fullStr | Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves |
| title_full_unstemmed | Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves |
| title_short | Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves |
| title_sort | igneous rim accretion on chondrules in low velocity shock waves |
| topic | Chondrites Chondrules |
| url | https://doi.org/10.3847/1538-4357/acc57c |
| work_keys_str_mv | AT yujimatsumoto igneousrimaccretiononchondrulesinlowvelocityshockwaves AT sotaarakawa igneousrimaccretiononchondrulesinlowvelocityshockwaves |